Mitchee is a brainiac with an engineering degree and the determination of a successful businesswoman. Her twin sister Farrah is a stunningly perfect lingerie model. Mitchee and Farrah are about to inherit their parents' business, Arnold Undergarments, the fourth largest women's lingerie company in the country. The company's founder and the twins' dad is Alan Arnold, who invented an ultra-supportive parachute fabric while serving as an engineer in the Army. His miracle fabric was originally used to lower Humvees into enemy territory, but Alan soon realized that his invention could be put to better use supporting something else. His best-selling bra, the revolutionary Breast-o Change-o, gained worldwide renown for making every woman look and feel like a goddess.
The twins' mother, Lee, is a beautiful former lingerie model who is not a deep thinker. She was a top fashion model at the peak of her career when she was booked to model the new Breast-o Change-o. When model met inventor, it was love at first sight. Marriage followed, Lee became Alan's partner in the business, and the twins were born soon thereafter.
As children and now as adults, these anything-but-identical twins have always been true reflections of their parents. Mitchee takes after their dad, while Farrah is the image of their mother. Alan finds it particularly satisfying that his famous bra at last has a perfect bottom half now that Mitchee has invented a shape-enhancing pair of panties known as the Butt-Pucker. Lee is just as proud that Farrah is uniquely qualified to model the Butt-Pucker and become the "spokesbutt" of the industry.
The sisters will constantly confront the labels of "brain" and "beauty" that they've had to deal with all their lives. Arnold Undergarments may be a force in the lingerie industry, but with Mitchee and Farrah in charge, this business - and this family - are going to need a lot of, um, support.
Mitchee finds out her ex-boyfriend, Zack, is back in town, and things heat up in a big way. Meanwhile, Alan discovers that Lee used to date Terry, a billionaire businessman whom Alan has always admired.